CVE-2026-120455
Last modified
CVE-2026-120455 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. rapidyaml through 0.16.0 contains an out-of-bounds write vulnerability in ParseEngine::_add_annotation() that allows attackers to corrupt memory by supplying YAML with excess anchors or tags. Attackers can submit YAML with consecutive anchors or tags to overflow the fixed two-element annotation array in release builds, corrupting stack memory and crashing the process..
Description
rapidyaml through 0.16.0 contains an out-of-bounds write vulnerability in ParseEngine::_add_annotation() that allows attackers to corrupt memory by supplying YAML with excess anchors or tags. Attackers can submit YAML with consecutive anchors or tags to overflow the fixed two-element annotation array in release builds, corrupting stack memory and crashing the process.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| biojppm | rapidyaml | <= 0.16.0 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-120455?
How severe is CVE-2026-120455?
How do I fix CVE-2026-120455?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-12045Read-only transaction bypass in the pgAdmin 4 AI Assistant a…8.8
- CVE-2026-120450LaraDashboard 1.4.0 before 1.4.9 contains an improper author…4.3
- CVE-2026-120451libgphoto2 through 2.5.34 contains stack-based and heap-base…6.8
- CVE-2026-120452libgphoto2 through 2.5.34 contains a heap out-of-bounds read…5.4
- CVE-2026-120453The Sleuth Kit through 4.15.0 contains a heap out-of-bounds …3.3
- CVE-2026-120454The Sleuth Kit through 4.15.0 contains a NULL pointer derefe…5.5
- CVE-2026-120456L-SMASH through 2.14.5 contains a heap out-of-bounds write v…6.1
- CVE-2026-120457libaec through 1.1.7 contains an out-of-bounds read vulnerab…5.3
- CVE-2026-120458Kvazaar through 2.3.2 contains an infinite loop vulnerabilit…5.5
- CVE-2026-120459python-jose through 3.5.0 contains an authentication bypass …7.4
- CVE-2026-12046Two state-mutating endpoints in pgAdmin 4's SQL Editor bluep…9
- CVE-2026-120460Jpom through 2.11.12 contains a cross-workspace authorizatio…8.8
Are you affected by CVE-2026-120455?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST